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In: Computers and Technology

Submitted By sikh
Words 21581
Pages 87
Com put er Fundam ent als: Pradeep K. Sinha & Pr it ii Sinha Com put er Fundam ent als: Pradeep K. Sinha & Pr it Sinha

Ref Page

Chapt er 9: I nput - Out put Dev ices

Slide 1/ 58

Com put er Fundam ent als: Pradeep K. Sinha & Pr it ii Sinha Com put er Fundam ent als: Pradeep K. Sinha & Pr it Sinha

Le a r n in g Obj e ct ive s
I n t h is ch a pt e r you w ill le a r n a bou t :
§ I nput / Out put ( I / O) devices § Com m only used input devices § Com m only used out put devices § Ot her concept s relat ed t o I / O devices

Ref Page 148

Chapt er 9: I nput - Out put Dev ices

Slide 2/ 58

Com put er Fundam ent als: Pradeep K. Sinha & Pr it ii Sinha Com put er Fundam ent als: Pradeep K. Sinha & Pr it Sinha

I / O D e vice s
§ Provide m eans of com m unicat ion bet ween a com put er and out er w orld § Also known as peripheral devices because t hey surround t he CPU and m em ory of a com put er syst em § I nput devices are used t o ent er dat a fr om t he out side world int o prim ary st orage § Out put devices supply r esult s of processing from prim ary st orage t o user s

Ref Page 148

Chapt er 9: I nput - Out put Dev ices

Slide 3/ 58

Com put er Fundam ent als: Pradeep K. Sinha & Pr it ii Sinha Com put er Fundam ent als: Pradeep K. Sinha & Pr it Sinha

Role of I / O D e vice s

Input data from external world

Input Devices

CPU and Memory

Output Devices

Results of processing in human acceptable form

Input data coded in internal form

Processed data in internal form

Ref Page 148

Chapt er 9: I nput - Out put Dev ices

Slide 4/ 58

Com put er Fundam ent als: Pradeep K. Sinha & Pr it ii Sinha Com put er Fundam ent als: Pradeep K. Sinha & Pr it Sinha

Com m on ly Use d I n pu t D e vice s
§ Keyboard devices § Point - and- draw devices § Dat a scanning devices § Digit izer § Elect ronic cards based…...

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